Method and apparatus for manufacturing a container filled with a product
AssigneeNorden Pac Development AB
InventorHans Linner
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for manufacturing containers filled with product are disclosed. The method includes partially introducing an end piece into the open end of a filled tubular container, softening the end of the container and a corresponding portion of the end piece which is to be molded, thereto, contacting a transverse end wall of the end piece with an abutment device with a flange for direct contact with the transverse end wall, cooling the abutment device with a cooling medium in order to indirectly cool the flange in order to prevent the flange from adhering to the transverse end wall, and closing the container by relatively displacing the abutment device carrying the end piece and the tubular container.
Claims23
A method for manufacturing a container filled with a product, said container comprising a substantially tubular body portion having a predetermined diameter, a first end and a second end, a first end piece for closing said first end of said tubular body portion, and a second end piece for closing said second end of said tubular body portion, said second end piece including a transverse end wall having a diameter slightly less than said predetermined diameter, said method comprising closing said first end of said tubular body portion with said first end piece, introducing said product into said second end of said tubular body portion, partially introducing said second end piece to a position only partially projecting into said second end of said tubular body portion, softening said second end of said tubular body portion and a corresponding portion of said second end piece intended for weldable contact with said second end of said tubular body portion, contacting said transverse end wall of said second end piece with an abutment member having a diameter slightly less than said diameter of said transverse end wall, said abutment member including a distal portion for directly contacting said transverse end wall, cooling said abutment member with a cooling medium, and thereby indirectly cooling said distal portion of said abutment member to thereby prevent said abutment member from adhering to said transverse end wall, and closing said second end of said tubular body portion by contacting said second end piece with said second end of said tubular body portion through relative displacement between said abutment member and said tubular body portion.
Apparatus for manufacturing a container filled with a product, said container comprising a substantially tubular body portion having a predetermined diameter, a first end, and a second end, a first end piece for closing said first end of said tubular body portion, a second end piece for closing said second end of said tubular body portion, said second end piece including a transverse end wall having a diameter slightly less than said predetermined diameter, said apparatus comprising placement means for placing said second end piece into an intermediate position only partially projecting into said second end of said tubular body portion, heating means for heating and softening said second end of said tubular body portion and a corresponding portion of said second end piece intended for weldable contact with said second end of said tubular body portion, abutment means for contacting said transverse end wall of said second end piece, said abutment means including a distal portion having a diameter slightly less than said diameter of said transverse end wall for directly contacting said transverse end wall of said second end piece and a stem portion carrying said distal portion, whereby said second end of said tubular body portion can be sealably closed by relative displacement between said abutment means and said tubular body portion, and cooling means for indirectly cooling said distal portion of said abutment means and thereby preventing said abutment means from adhering to said transverse end wall.
Dependencies are inferred from the claim text.